抽油机电液伺服加载系统设计与研究

发布时间：2018-06-19 00:02

本文选题：抽油机 + 电液伺服　；参考：《河南科技大学》2015年硕士论文

【摘要】：石油作为支撑当今社会发展的三大能源之一,被称为现代经济发展的血液。我国是一个石油消费大国,同时也是石油生产大国。在我国大多数地面油井采用抽油机采油,其工作效率较低,年耗电达30~40亿千瓦时,性能急需提升。抽油机的工作环境恶劣,设备重运输成本高,因此如能够在实验室条件下模拟抽油机的工作情况,对于研究和改进抽油机的工作性能具有重大意义。本文研究的抽油机电液伺服加载系统,结合机械、液压、计算机和电子技术,设计了一套电液伺服加载系统,该系统能够模拟抽油机的工作情况,有效减少抽油机性能研究的成本和研制周期,具有重要的理论意义和实用价值。本文介绍了抽油机加载系统的发展历程以及电液伺服系统的研究现状,根据抽油机的工作情况和技术要求,采用电液伺服技术设计了双闭环控制抽油机电液伺服加载系统。分析了双伺服阀加载液压系统功能和完成主要元件参数计算选择和液压系统搭建。设计了伺服加载控制系统,采用PLC作为下位机、PC作上位机,通过OPC技术实现PLC与PC机通讯。介绍了PID控制算法和模糊自整定PID控制算法,采用LabVIEW软件编写模糊PID控制算法,完成了控制系统程序设计和人机交互界面设计。针对抽油机电液伺服加载系统进行了建模,分析了多余力的干扰作用,基于结构不变性原理介绍双伺服阀控制的优点,利用AMESim软件进行了系统仿真验证了液压系统和控制系统的有效性和合理性。对于本设计的关键部分搭建模拟试验平台进行了试验研究,试验结果分析研究表明系统的设计符合预期目标,能够满足设计要求。
[Abstract]:As one of the three energy sources supporting the development of modern society, petroleum is called the blood of modern economic development. China is a large oil consumption country, but also a large oil production country. In most surface oil wells in China, pumping unit is used to produce oil, its efficiency is low, the annual power consumption is 30 ~ 4 billion kilowatt-hours, the performance needs to be improved urgently. The working environment of pumping unit is bad and the cost of heavy equipment transportation is high. So it is of great significance to study and improve the working performance of pumping unit if it can simulate the working condition of pumping unit under laboratory conditions. The electro-hydraulic servo loading system of pumping unit studied in this paper, combined with mechanical, hydraulic, computer and electronic technology, has designed a set of electro-hydraulic servo loading system, which can simulate the working condition of pumping unit. It is of great theoretical significance and practical value to effectively reduce the cost and development cycle of pumping unit performance research. This paper introduces the development history of pumping unit loading system and the research status of electro-hydraulic servo system. According to the working situation and technical requirements of pumping unit, a double-closed-loop control electro-hydraulic servo loading system for pumping unit is designed by using electro-hydraulic servo technology. The function of double servo valve loading hydraulic system, the calculation and selection of main component parameters and the construction of hydraulic system are analyzed. The servo loading control system is designed. PLC is used as the lower computer and PC as the upper computer. The communication between PLC and PC is realized by OPC technology. The pid control algorithm and fuzzy self-tuning pid control algorithm are introduced. The software LabVIEW is used to compile the fuzzy pid control algorithm. The control system program design and human-computer interface design are completed. In this paper, the electro-hydraulic servo loading system of pumping unit is modeled, and the interference effect of multiple Yu Li is analyzed. Based on the principle of structural invariance, the advantages of double servo valve control are introduced. The validity and rationality of hydraulic system and control system are verified by system simulation with AMESim software. The experimental results show that the design of the system accords with the expected goal and can meet the design requirements.
【学位授予单位】：河南科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE933.1

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